Magazine for motion picture cameras



May 22, 1934. F. H. OWENS 1,959,496

' MAGAZINE FOR MOTION PICTURE CAMERAS Original Filed May 28, 4929 2 Sheets-Sheet 1 I N V EN TOR. fizz/VAN ff, OWE/V fil. W

ATTO NEY May 22, 1934. QWENS 1,959,496

' MAGAZINE FOR MOTION PICTURE CAMERAS Original Filed May 28, 1929 2 Sheets-Sheet 2 INVENTOR. Fen/m f7. OWENS.

A RNEY.

Patented May 22,

1,959,499 MAGAZINE FOR MOTION PICTURE CAMERAS Freeman H. Owens, New York, N. Y.

Application May 28, 1929, Serial No. 366,645 Renewed October 25, 1933 5 Claims. ((51. 242-71) This invention relates to improvements inmagazines formotion picture cameras, the principal object ofthe invention being to provide a magazine of'this character having a special construction and arrangement of guide rollers for the film, whereby light is-efiectively excluded from the film during its passage into the magazine, the arrangement being such as considerably. to facilitate the threading of the film.

A further object of the invention is to provide a magazine having a coverreleasably secured thereto by special means, the meeting edges of the magazines and cover being formed to produce an effective light excluding joint.

A further object of the invention is to provide a magazine adapted to be operatively attached to the frame of a camera 'said magazine and frame having cooperating means for forming between them a light tight chamber and novel =-means for releasably securing them together.

A further object of the invention is .to provide a magazine having means for supporting it in upright position when detached from the camera frame.

A further object of the invention isto provide a magazine of generally improved construction so" as to afiord maximum eiliciency against the ingress of light to the interior of the magazine, and which magazine can be handled for loading and unloading in the dark room with the a same certainty as in daylight.

Other objects and advantages .of the invention will appear as the description proceeds.

In the drawings accompanying and forming part of this specification,

Figure 1 is an end elevation with the cover removed;

Figure 2 is a sectional view'taken approximately on the line 2-2 of- Figure 1, portions of the magazine being broken away Figure 3 is a fragmentary sectional view on an enlarged scale through one of the guide rollers illustrating the details of constructionand mounting thereof;-

Figure 4 is a detail sectional view taken approximately on the line 4-4 of Figure 1; and

Figure 5 is a-detail sectional view illustrating the manner of connecting the magazine to the of the magazine camera frame and the means for transmitting motion to the magazine reel.

The same characters :of reference designate the same parts in the different figures of the drawings.

Referring to the drawings, 1' designates generally the magazine-which comprises an approximately circular metallic box cr hollow drum provided with a cover 2. Both the magazine and its cover areprovided with a lining 3 formed of sound resisting and light absorbing material, such for instance as bakelite, wood, felt, velvet or any other suitable material. The magazine and cover are fitted and secured together in such a manner as to form a light lock which will absolutely exclude light from the interior of the magazine when closed. For this purpose, the 9 magazine and cover are provided at their meeting edges with step-formed mating flanges 4 and 5, as shown most clearly in section at the lower left hand end of Figure 2. The magazine is provided with a radially extending chamber 1 in communication with the interior of the magazine for the accommodation of the guide rollers to be hereinafter described, the cover 2 being also provided with a corresponding radially extending portion adapted to fit said chamber and exclude light therefrom in the manner above described. For holding the magazine and its cover together, the cover has secured thereto an attaching plate 6, (see Figure 4) adapted to engage the inner side of the flange 4 of the magazine and retain the cover in closing contact therewith. The engaging and of the plate 6 may be bevelled slightly, as shown, as may also the flange 4 at this point to facilitate engagement.

The magazine and cover are further provided, preferably at opposite sides of the chamber 1 with bosses '7 and 8 respectively. The magazine bosses '7 are each bored for the reception of a stud 9 which is secured against rotation therein by a set screw 10. The said bosses are each further provided with an enlarged depression or opening encircling the stud 9 for a'portion of its length. The bosses 8 of the cover are each bored for the reception of a rotatable stud 11, each of said studs having secured to its end outside of the cover, a knurled knob 12 for rotating the stud, said studs being located so as to be in exact alignment with the corresponding studs 9 when the cover is in position on the magazine. Each stud 11 has secured to the inner end thereof an enlarged collar 18 the exterior of which fits snugly into the corresponding depression in the magazine boss. the collar being provided with a central opening fitting around the portion of the stud 9 that projects into. said depression. The studs 9 of the magazine are each provided with a pin 14 extending radially from the stud and adapted to enter a bayonet slot 15 formed in the wall of the collar 13, as shown in Figure 2. It will thus be seen that when the .magaaine is to be closed, the cover is placed in position so that its attaching plate 6 engages the inner surface of the flange 4 of the magazine at the proper point diametrically opposite the chamward rotation of the studs 11 by means of the knurled knobs 12 the cover and magazine are firmly locked together so as to exclude all light.

The film guiding rollers herein shown are of special construction and are mounted in a manner peculiar to the present invention. Referring particularly to Figure 3, in which one of the rollers is shown in enlarged sectional view, 16 designates the roller, which is provided in its opposite ends with axial depressions 1'7 and 18 respectively.

. A spindle 19 passes axially through the center of,

the roller and is secured to the wall of the magazine 1 by means of screws 20 engaging a fiange21 seated in the recess l'lof the roller. The roller 16 is retained on the spindle by a washer 22 held in place by a screw 23 which is threaded into the end of the spindle, said washer and the head of the screw being disposed within the recess 18 of the roller. That portion of the cover 2 which lies immediate over the roller chamber carries a plurality of light excluding pads 24, one for each guide roller, said pads being recessed at one side thereofto accommodate the head of the screw 23, so that when the cover is locked in position on the magazine the pads 24 effectively prevent ingress of light to the film through the ends of the rollers. In the device as shown in the drawings five rollers constructed and mounted as above described are disposed in quincuncial arrangement, the center roller being disposed between walls 1 forming part of the chamber walls and curved to conform to the curvature of the roller.

The present invention comprehends special light excluding means for connecting the magazine to the frame ofthe camera. As shown in Figure 5, the end wall of the magazine is provided on its exterior surface with an axially extending shouldered flange 25, while the camera frame 26 is also provided with a flange 27 that closely encircles the magazine fiange, thereby forming between the magazine and frame a light tight chamber in which is disposedthe means hereinafter described for transmitting motion to the reel'carried by the magazine. For locking the magazine and camera together, the flange 27 of the camera frame is provided at one portion thereof with a thickened wall in which is disposed a rotatable pin 28 having secured at one end thereof a cam plate' 29 and at its opposite end a knurled knob 30. The wall of the magazine flange is provided with an inwardly extending slot 31 adapted to receive the cam plate 29 as shown in Figure 5. When the magazine and camera are to be disconnected, the pin 28 is partially rotated so as to carry the plate 29 outof its engaging slot, whereupon the flanges 25 and 27' can be readily separated.

The reel 32 which carries the film is axially slidable on a stud shaft '33 mounted for rotation in a bushing 34 disposed centrally of the end wallof the magazine, which bushing and shaft extend somewhat beyond the exterior surface of the end wall of'the magazine. To the end of the shaft 33 is secured a transversely extending bar 35 adapted to be engaged on opposite sides thereof at its opposite ends by a pair of dowel pins 36 secured in a disk 37 attached to the end of the operating shaft 38 of the camera, whereby upon rotation of said shaft the pins 36 will engage the bar 35 and thus rotate the reel 32 for taking up the film.

Heretofore, in the handling of film magazines, the contour of which is generally circular, when the operator desired to lay the magazine aside it was necessary for him either to place it on its flat side or to lean it against some support, often resulting in the magazine falling and becoming bent, dented, etc. In the present invention, however, I have provided the magazine with a base which may be in the form of supporting feet 39 (Figure 1) disposed on the periphery of the magazine'at equal distances from a line passing diametrically through the axial center of the magazine.

From the foregoing it will be seen that I have provided a magazine which, owing to the constructional features of the magazine itself and its associated parts the admission of light of any portion of the interior of the magazine is positively prevented. For instance, owing to the axial depressions in the ends of the rollers and the disposition therein of the light deflecting pads, any light which may strike the ends of the rollers would have to turn around several corners in order to reach'the film, which is obviously im- -will strike the surface of the center roller and thus be deflected so that it cannot pass between the remaining pair. However, I do not wish to be limited to the provision of five rollers, since three would serve to deflect the light in the same manner, but I have found that by providing five rollers, the center one operating between walls curved concentrically with the surface of the roller, threading of the film into the magazine is considerably facilitated, since all that is necessary is to push the lead end between the two outermost rollers until it strikes the center roller, whereupon said roller will rotate and thus direct the end of the film toward one of the curved side walls, which in turn will guide it toward the innermost pair ofrollers which will rotate under continued pushing of the film and thus carry the end of the film between the two innermost rollers and into or out of the magazine.

What is claimed is:

1. A film magazine comprising a housing havinga lining of sound resisting material, a light excluding guide roller system carriedby .said

housing, a cover for said housing, cooperating means carried by said housing and cover for reand a third roller so disposed that a line passing between the tangential portions of said first two rollers will intersect said third roller, said third roller being substantiallytangential to both of said first named rollers.

3. In combination with a magazine for motion picture cameras, a plurality of guide rollers therein, two of said rollers belnz di p ed with their peripheries substantially tangential to each other,

and a third roller so' disposed that a line passing between the tangentialportions of said first two rollers will intersect said third roller, each of I said rollers having axially extending depressions in its ends, and light excluding means in said depressions.

4. In combination with a magazine for motion picture cameras, a plurality of guide rollers therein, two of said rollers being disposed with their,

peripheries substantially tangential to each other, a third roller so disposed that a line passing between the tangential portions of said first two rollers will intersect said third roller, and a second pair ofsubstantially tangential rollers similarly disposed with respect to said third roller but on the opposite side thereof from said first two named rollers, said third roller being substantially tangential to all of said other rollers.

5. In combination with a magazine for motion picture cameras, a plurality of guide rollers therein, two of said rollers being disposed with their" 

